YGMV, and it doesn't break anything, but spirits feel very anachronistic to me. They are a much later invention than the bronze/early iron age theme Glorantha tends toevoke, and so I don't thinkI'd have anything requiring distillation around.
I feel like this was done to compensate for how incredibly good his sheer stat roll is; rules as written, the odds of getting such a good roll is absolutely tiny.